Carrier WeatherMaster 50HC*A07 Series, Installation Instructions Manual

Page: 39 / 52

39
Table 8 — Menu Structure* (cont)
MENU PARAMETER
PARAMETER
DEFAULT
VALUE
PARAMETER
RANGE AND
INCREMENT
†
NOTES
SYSTEM SETUP
INSTALL 01/01/10 N/A Display order = MM/DD/YY
Setting order = DD, MM, then YY.
UNITS DEG °F °F or °C Sets economizer controller in degrees Fahrenheit or Celsius
EQUIPMENT CONV Conventional or HP CONV = conventional;
HP O/B = Enable Heat Pump mode. Use AUX2 I for Heat Pump input
from thermostat or controller.
See Note 4.
AUX2 IN N/A Shutdown (SD)
Heat (W1)
HP (O)
HP (B) In CONV mode:
SD = Enables configuration of shutdown (default);
W = Informs controller that system is in heating mode.
NOTE: If using 2-speed fan mode, you must program CONV mode for W.
Shutdown is not available in 2-speed fan mode. See Note 4.
In HP O/B mode:
HP(O) = energize heat pump on Cool (default);
HP(B) = energize heat pump on heat.
FAN SPEED 1 speed 1 speed/2 speed Sets the economizer controller for operation of 1 speed or 2 speed supply
fan. The controller does not control the fan but positions the OA and RA
dampers to the heating or cooling mode. See page 35 for modes and
position.
NOTE: 2-speed fan option also needs Heat (W1) programmed in AUX 2
In. See Note 4.
FAN CFM 5000cfm 100 to 15000 cfm;
increment by 100 UNIT DESIGN AIRFLOW (CFM)
Enter only if using DCVAL ENA = AUTO
The value is found on the nameplate label for the specific unit.
AUX1 OUT NONE NONE
ERV
EXH2
SYS Select OUTPUT for AUX1 O relay
• NONE = not configured (output is not used)
• ERV = Energy Recovery Ventilator
††
• EXH2 = second damper position 24 Vac out for second exhaust fan
• SYS = use output as an alarm signal
OCC INPUT INPUT or ALWAYS OCCUPIED MODE BY EXTERNAL SIGNAL
When using a setback thermostat with occupancy out (24 vac), the 24 vac
is input “INPUT” to the OCC terminal. If no occupancy output from the
thermostat then change program to “ALWAYS” OR add a jumper from ter-
minal R to OCC terminal. See Note 1.
FACTORY DEFAULT NO NO or YES Resets all set points to factory defaults when set to YES. LCD will briefly
flash YES and change to NO but all parameters will change to the factory
default values.
NOTE: RECHECK AUX2 IN and FANTYPE for re
q uired 2-speed values.
ADVANCED
SETUP
MA LO SET 45°F
(7°C) 35 to 55°F
(2 to 18°C);
incremented by 1° SUPPLY AIR TEMPERATURE LOW LIMIT
Temperature to achieve Freeze Protection (close damper and alarm if
temperature falls below setup value).
FREEZE POS CLO CLO or MIN FREEZE PROTECTION DAMPER POSITION
Damper position when freeze protection is active
CLO = closed
MIN = MIN POS or VENTMAX
CO2 ZERO 0ppm 0 to 500 ppm;
Increment by 10 CO
2
ppm level to match CO
2
sensor start level.
CO2 SPAN 2000ppm 1000 to 3000 ppm;
Increment by 10
CO
2
ppm span to match CO
2
sensor: e.g. 500-1500 sensor output would
be 500 CO
2
zero and 1000 CO
2
span.
STG3 DLY 2.0h 0 min, 5 min, 15 min,
then 15 min intervals.
Up to 4 hrs or OFF COOLING STAGE 3 DELAY
Delay after stage 2 cool has been active. Turns on second stage of cool-
ing when economizer is first stage call and mechanical cooling is second
stage call. Allows three stages of cooling, 1 economizer and 2 mechani-
cal.
OFF = no Stage 3 cooling
SD DMPR POS CLO CLO or OPN Indicates shutdown signal from space thermostat or unitary controller.
When controller receives 24 Vac input on the SD terminal in conventional
mode, the OA damper will open if programmed for OPN and OA damper
will close if programmed for CLO. All other controls, e.g., Y1-O, Y2-O,
EXH1, etc. will shut off.
NOTE: Function NOT AVAILABLE with 2-speed mode
DA LO ALM 45°F (7°C) 35 to 65°F (2 to
18°C); incremented
by 5 deg. Used for alarm for when the DA air temperature is too low. Set lower
range of alarm, below this temperature the alarm will show on the display.
DA HI ALM 80°F (27°C) 70 to 180°F (21 to
82°C); incremented
by 5 deg. Used for alarm for when the DA air temperature is too high. Set high
range of alarm, above this temperature the alarm will show on the display.
DCVCAL ENA MAN MAN (manual)
AUTO Turns on the DCV automatic control of the dampers. Resets ventilation
based on the RA, OA, and MA sensor conditions. Re
q uires all sensors
(RA, OA, MA, and CO
2
).
NOTE: This operation is not available with a 2-speed fan unit.